What are the difference between Table and Structure and Work area?
Internal tables:
Internal tables are a means of storing data in the fixed format in
working memory of ABAP. The data is stored line by line. So it is
necessary for the data to be in a fixed format. Generally, they are used
to store data in database tables to be used in ABAP programs.
Structures:
Structures are basically data objects consisting of various components
or fields of any data types. It differs from the tables in a way that it
simulates the format of the table and is used to hold one row of data
whereas table has multiple rows of data.
Work-Areas:
Work area is basically variables used to store a single row of data. It
is similar to structure apart from the fact that it can only be used at
program level whereas structure can be used at data dictionary level as
well.
